A historic drama unfolds in the early 20th century, as the railroad industry transitions from semaphore signals to color lights, revealing the unforeseen consequences of this innovation, including widespread job losses and a devastating head-on collision.
The Block Signal
The 1920s silent film "The Signal" tells the story of a small town's traditional way of life being disrupted by the arrival of the railroad, resulting in a mysterious and unexpected consequence: the entire population suddenly becomes color blind.